Wilhelm Ernst
Wilhelm Ernst is the name of the following people:
- Wilhelm Ernst (veterinarian) (1879–1951), German veterinarian and university professor
- Wilhelm Ernst (Oberamtmann) (1885–1963), German administrative officer
- Wilhelm Ernst (architect) (1886 – after 1952), German architect
- Wilhelm Ernst (geologist) (1888–1953), German geologist
- Wilhelm Ernst (chess player) (1905–1952), German chess player
- Wilhelm Ernst (theologian) (1927–2001), German Catholic theologian
Wilhelm Ernst is the name of the following ruler:
- Wilhelm Ernst (Saxe-Weimar) (1662–1728), Duke of Saxe-Weimar
- Wilhelm Ernst (Lippe-Biesterfeld) (1777–1840), German count
- Wilhelm Ernst (Saxe-Weimar-Eisenach) (1876–1923), Grand Duke of Saxe-Weimar-Eisenach